Perhaps you should try some spelling variations:
tesis del » tesis de, sintesis del, protesis del
de tesis » la tesis, de temas
del 40 » del 80, del 90, del 20
r 1887 » a 1887, r 1857, r 1881
mar r » mar a, mar y
y 12 » y 122, y 2, 1 12
de 1 » de 15, del 1, de i
1 de » y de

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( Cabildo aborto y 12 de tesis del 40 ) OR ( Cabildo abierta de 1 de mar r 1887 ))~".
• Adding a wildcard symbol may retrieve word variants: (( Cabildo aborto y 12 de tesis del 40 ) OR ( Cabildo abierta de 1 de mar r 1887 ))*.